CentOS SSH Installation And Configuration

How do I install and configure ssh server and client under CentOS Linux operating systems? You need to install the following packages (which are installed by default until and unless you removed it or skipped it while installing CentOS)

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OpenSSH Server Configuration

Edit /etc/ssh/sshd_config, enter:# vi /etc/ssh/sshd_config To disable root logins, edit or add as follows:PermitRootLogin no Restrict login to user tom and jerry only over ssh:AllowUsers tom jerry Change ssh port i.e. run it on a non-standard port like 1235Port 1235 Save and close the file. Restart sshd:# service sshd restart

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Posted by: Vivek Gite

The author is the creator of nixCraft and a seasoned sysadmin, DevOps engineer, and a trainer for the Linux operating system/Unix shell scripting. Get the latest tutorials on SysAdmin, Linux/Unix and open source topics via RSS/XML feed or weekly email newsletter.

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Any changes to iptables *** must *** be on lines above COMMIT, which is found at the end of the file. Before adding the port (eg 22), do a search to see if it already exists: nano iptables Ctrl W to invoke search type: dport 22